Urs Arnet started his carreer at the University of Basel where he studied pharmacy. He did his PhD in Prof. Lüscher’s Cardiovascular Research Group at the University Clinic Basel (Switzerland) on nitrate vasodilators. After his PhD he moved to the John Hopkins University (USA), where he investigated a protein that synthesizes endothelial nitric oxide. In 1995, he returned to Switzerland, where he continued his research at Prof. Lüscher’s Cardiovascular Research Group at the “Insel” Hospital Bern. In 1997 he assumed a position at Merck, Sharp & Dohme-Chibret AG.